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(No Model.)

D. N. CALKINS. Milk Cooler. No. 233,726. Patented Oct. 26, 1880.A

:NVE la www Sweat.. ATTORNEYS.

ILPEYERS. PKOTO-LITNOGRAPHER. WASHINGTON. D C.

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mi il 1 E l l zb Il EssEs Unire 'rares Y DAVID N. OALKINS, OF ROCHELLE, ILLINOIS, ASSIGNOR OF ONE-HALF OF HIS RIGHT TO MARVIN T. ELLINWOOD AND ALFRED L. SORANTON, OF

SAME PLACE.

MILK-COOLER.

SPECIFICATION forming part of Letters Patent No. 233,726, dated October 26, 1880.

Application lcd May 26, 1880. (No model.)

To all whom 'it may concern Be it known that I, DAVID N. lALKINS, ot Rochelle, in the county oi' Ogle and State of Illinois, have invented certain new and usei'ul Improvements in Milk-Coolers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference 1o being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this speciiication.

Figure l is a view, in perspective, ot' the milk-cooler. Fig. 2 is a vertical sectional view i5 taken in a plane passing at right .angles through the catch-basin ot' the cover. Fig. 3

p is a detail vertical sectional view of the main cover and supplemental cover in a plane passing through the water-tube and Ventilatingzc tube. Fig. 4 is a sectional view of' the waterchamber, representing the milk-can in side elevation, the covers ot' the water-chamber being removed. Fig. 5 is a detail view, in side elevation, of the cream-discharge an d indicator.

Fig. 6 is a detail view, in horizontal transverse section, ot' the cream-discharge device. Fig.- 7 is a detail sectional view of the connection ot' the milk-discharge spout with the milk-can.

Preferably I make the water-chamber A ot' 3o wood and line its interior with tin or galvanized iron. IVithin the chamber is placed a milkcan,B, of height adapted to extend above the overflow-opening a of the chamber, said can iitting within an annular rim, b, secured to the central portion of the bottom of the waterchamber. This rim is formed with a vertical opening, c, through which the sleeve d of the milk-discharge spout passes as the can is placed in or removed from position. Horizon- 40 tal opening e of the rim communicates with said vertical opening, and into this horizontal opening the sleeve d is fitted, in order to maintain the can against vertical displacement.

A rubber gasket, f, Jlits in the sleeve d, and

through the gasket the tube g passes. Disks 7L, secured to opposite ends of the tube, t against the inner and outer ends of the gasket and connect the several parts together. This tube has free rotary movement in the gasket, and its outer end is provided with a spout, l. 5o

The main cover O is provided with a rim, m, which may be formed hollow or n'ot', as preferred, and depends into the interior ot' the water-chamber. This rim, dipping into the water, forms a water-seal, and an air-chamber, n, is thus formed about the upper portion of the can. The central portion ot' the main cover is formed with a depressed ice-receptacle, p, adapted to lit within the open top ot' the can when the latter is in position. This ice-recep- 6o tacle serves to cool the contents ot' the can.

Heretofore a cover provided with a watersealln g ange or rim has been adapted to serve 'as a cold-water receptacle, located above the milk-can; butin such instance the central portion ot' the cover was not depressed so as to tit within the open top of the milk-can.

The sides ot' the main cover are provided with an upwardlyextending rim, r, which forms a water-pan on the top ot' said cover. 7o A tube, s, extends from the surface of this cover down within the water-chamber to a point below the water-line. The water resulting from the melting ot' the ice passes through this tube and into the water-chamber. The cover is further provided with a ventilatingtube, t, whose lower extremity communicates with air-chamber n, and whose upper extremity extends above the water-rim ot the cover.

The upper extremity of the Ventilating-tube 8o may be corked up after the animal heat has passed ol from the milk.

The rear side otA the main cover is provided with a catch-basin, D, which extends across the cover, and is adapted to catch the water which may be on the cover as the latter is swung back on its hinges.

The supplemental cover E is formed with a depending tlange,w, about its sides. This an ge rests upon the main cover and forms a 9o water-space, between the two covers. The ventilating-tube passes through a hole, y, formed in the supplemental cover.

An upright cylinder, F, is formed at the central portion of the supplemental cover, and is in line with the depressed ice-receptacle of the main cover. The side of the cylinder is provided with an annular air-chamber, z, and the cylinder is provided with a hollow removable head or lid, G. The ice is placed within the cylinder and rests in the depressed ice-receptacle, thereby maintaining the milk at a cool temperature.

The upper portion of the milk-can is provided with a plate, E, iitted over a vertical opening formed in its side. This plate may be of glass or other transparent substance, whereby the line of division between the cream and the milk can be seen. The side of the milk-can is further provided with a curved opening, a, formed in a vertical plane, and having its extremities practically in transverse line with the extremities of the transparent plate.

A circular recess, b, is formed on the outer side of the milk-can, and within this recess is centrally pivoted a vertical disk, L. This disk has a knob, c', for rotating; it, and is further provided with a dischargespout, d', located near the periphery of the disk. This spoilt and the curved opening a are both formed at the same distance from the pivotal center of the disk, so that as the latter is rotated its spout is always in line with said curved opening. By turning the disk its spout is correspondingly moved to dii'erent heights, and by adjusting the spout in horizontal line with the line of division between the milk and cream, as shown through the transparent plate, the cream can be drawn off from the milk.

To aid in quickly and accurately adjusting the disk, I provide the latter with a series ot' radial lines. (Marked 2 3 -1 5.) These lines respectively register with a vertical series of horizontal lines similarly marked at the side ofthe transparent plate.

What I claim is- 1. In a milk-cooler, the combination, with a water-chamber and a milk-can, of a cover having a depending rim which extends into the waterchamber, the central portion ot' said cover being provided with a depressed ice-receptacle which fits in the open top of the milkcan, substantially as set forth.

2. In a milk-cooler, the combination, with a water-chamber and a milk-can, of acover having` an upwardly-extending rim, and formed with a central depressed ice-receptacle which tits in the open top of the milk-can, said cover being provided at a point between the rim and the ice-receptacle with a tube, which conducts the waste ice-water from the surface of the cover into the water-chamber, substantially as set forth.

3. In a milk-cooler, the combination, with a water-chamber and a cover provided with a central depressed ice-receptacle, ot' asupplemental cover provided with a central upright cylinderin line with said depressed ice-receptaannular rim secured to the bottom of the water-chamber and provided with communicating vertical and horizontal openings, of a milkcan seated within the rim and provided with a sleeve for the milk-discharge tube, adapted to t in said rim-openings, substantially as set forth.

7. In a milk-cooler, the combination, with a cover hinged to the water-chamber and provided with a rear basin which catches the surface-water when the cover is raised, said cover having its central portion provided with a depressed ice-receptacle which fits in the milk-can top, of a loose supplemental cover resting on the hinged cover and provided with an upright chamber in line with said ice-receptacle, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 6th day ot' May, 1880.

DAVID N. OALKINS. Witnesses:

H. O. RoGERs, H. H. GLENN. 

